中文

基于第谷-盖亚天体测量解的盖亚造父变星与RR Lyrae星及光度定标

太阳与恒星天体物理 2017-09-13 v1

摘要

盖亚数据发布1包含了700多颗银河系造父变星和RR Lyrae星的视差,作为第谷-盖亚天体测量解(TGAS)的一部分计算而得。我们利用TGAS视差,结合文献中的(V,I,J,Ks,W1V, I, J, {K_\mathrm{s}}, W_1)测光和光谱,对经典和II型造父变星的周期-光度与周期-Wesenheit关系,以及RR Lyrae星的近红外周期-光度、周期-光度-金属丰度关系和光学光度-金属丰度关系的零点进行了定标。在本工作中,我们简要总结了采用在视差或距离(绝对星等)空间中操作的不同的技术拟合这些基本关系所获得的结果。

关键词

引用

@article{arxiv.1704.08865,
  title  = {Gaia's Cepheids and RR Lyrae Stars and Luminosity Calibrations Based on Tycho-Gaia Astrometric Solution},
  author = {Gisella Clementini and Laurent Eyer and Tatiana Muraveva and Alessia Garofalo and Vincenzo Ripepi and Marcella Marconi and Luis Sarro and Max Palmer and Xavier Luri and Roberto Molinaro and Lorenzo Rimoldini and Laszlo Szabados and Richard I. Anderson and Ilaria Musella},
  journal= {arXiv preprint arXiv:1704.08865},
  year   = {2017}
}

备注

5 pages, 4 figures, proceedings for the 22nd Los Alamos Stellar Pulsation Conference Series Meeting "Wide field variability surveys: a 21st-century perspective", held in San Pedro de Atacama, Chile, Nov. 28 - Dec. 2, 2016